Filter cover



FIG. 1 is a perspective view from the top of a large diameter filter cover showing our new design;

FIG. 2 is a perspective view from the bottom;

FIG. 3 is a top plan view;

FIG. 4 is a side or edge view of a small diameter filter cover of our new design;

FIG. 5 is a sectional view taken along line 5--5 of FIG. 3;

FIG. 6 is a fragmentary perspective view showing pleat detail of the filter cover of FIG. 3;

FIG. 7 is a side or edge view of a medium diameter filter cover according to our new design; and,

FIG. 8 is a side or edge view of a large diameter filter cover according to our new design. 

The ornamental design for a filter cover, as shown and described. 